Singular and Plural Worksheet – Class 10

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🧠 Section A: Advanced Academic & Scientific Nouns (1–20)

1. hypothesis → ______
2. analysis → ______
3. synthesis → ______
4. thesis → ______
5. crisis → ______
6. axis → ______
7. basis → ______
8. oasis → ______
9. criterion → ______
10. phenomenon → ______
11. medium → ______
12. datum → ______
13. bacterium → ______
14. curriculum → ______
15. memorandum → ______
16. millennium → ______
17. symposium → ______
18. referendum → ______
19. spectrum → ______
20. vertebra → ______

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🔄 Section B: Rare Irregular & Collective Nouns (21–40)

21. man → ______
22. woman → ______
23. child → ______
24. foot → ______
25. tooth → ______
26. mouse → ______
27. goose → ______
28. ox → ______
29. louse → ______
30. person → ______
31. deer → ______
32. sheep → ______
33. fish → ______
34. aircraft → ______
35. species → ______
36. series → ______
37. salmon → ______
38. trout → ______
39. cod → ______
40. swine → ______

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🧩 Section C: Latin / Greek / Technical Forms (41–60)

41. alumnus → ______
42. alumni → ______
43. appendix → ______
44. appendices → ______
45. index → ______
46. indices → ______
47. formula → ______
48. formulae → ______
49. genus → ______
50. genera → ______
51. stimulus → ______
52. stimuli → ______
53. nucleus → ______
54. nuclei → ______
55. radius → ______
56. radii → ______
57. focus → ______
58. foci → ______
59. analysis → ______
60. analyses → ______

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✍️ Section D: Sentence Transformation (61–75)

61. The hypothesis is verified. → __________________
62. The analysis is detailed. → __________________
63. The crisis is escalating. → __________________
64. The criterion is strict. → __________________
65. The medium is effective. → __________________
66. The bacterium is harmful. → __________________
67. The curriculum is revised. → __________________
68. The phenomenon is extraordinary. → __________________
69. The axis is inclined. → __________________
70. The thesis is defended. → __________________
71. The vertebra is damaged. → __________________
72. The deer is running fast. → __________________
73. The sheep is grazing peacefully. → __________________
74. The fish is migrating. → __________________
75. The child is studying. → __________________

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🎯 Section E: Choose Correct Plural (76–90)

76. hypothesis → (hypotheses/hypothesises)
77. axis → (axes/axises)
78. crisis → (crises/crisis)
79. criterion → (criteria/criterions)
80. bacterium → (bacteria/bacteriums)
81. phenomenon → (phenomena/phenomenons)
82. datum → (data/datums)
83. appendix → (appendices/appendixes)
84. nucleus → (nuclei/nucleuses)
85. radius → (radii/radiuses)
86. fungus → (fungi/funguses)
87. cactus → (cacti/cactuses)
88. medium → (media/mediums)
89. analysis → (analyses/analysises)
90. vertebra → (vertebrae/vertebras)

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🧠 Section F: Mixed Board-Level Challenge (91–100)

91. One criterion, many ______
92. One analysis, many ______
93. One bacterium, many ______
94. One nucleus, many ______
95. One radius, many ______
96. One phenomenon, many ______
97. One hypothesis, many ______
98. One vertebra, many ______
99. One man, many ______
100. One goose, many ______

Answer Key (Tab Form)

🧠 Section A: Academic & Scientific Nouns (1–20)

Q	Answer	Q	Answer
1	hypotheses	11	media
2	analyses	12	data
3	syntheses	13	bacteria
4	theses	14	curricula
5	crises	15	memoranda
6	axes	16	millennia
7	bases	17	symposia
8	oases	18	referenda
9	criteria	19	spectra
10	phenomena	20	vertebrae

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🔄 Section B: Irregular Nouns (21–40)

Q	Answer	Q	Answer
21	men	31	deer
22	women	32	sheep
23	children	33	fish
24	feet	34	aircraft
25	teeth	35	species
26	mice	36	series
27	geese	37	salmon
28	oxen	38	trout
29	lice	39	cod
30	people	40	swine

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🧩 Section C: Latin / Greek / Technical Forms (41–60)

Q	Answer	Q	Answer
41	alumni	51	stimuli
42	alumni	52	stimuli
43	appendices	53	nuclei
44	appendices	54	nuclei
45	indices	55	radii
46	indices	56	radii
47	formulae	57	foci
48	formulae	58	foci
49	genera	59	analyses
50	genera	60	analyses

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✍️ Section D: Sentence Transformation (61–75)

Q	Answer
61	The hypotheses are verified.
62	The analyses are detailed.
63	The crises are escalating.
64	The criteria are strict.
65	The media are effective.
66	The bacteria are harmful.
67	The curricula are revised.
68	The phenomena are extraordinary.
69	The axes are inclined.
70	The theses are defended.
71	The vertebrae are damaged.
72	The deer are running fast.
73	The sheep are grazing peacefully.
74	The fish are migrating.
75	The children are studying.

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🎯 Section E: Choose Correct Plural (76–90)

Q	Answer	Q	Answer
76	hypotheses	83	appendices
77	axes	84	nuclei
78	crises	85	radii
79	criteria	86	fungi
80	bacteria	87	cacti
81	phenomena	88	media
82	data	89	analyses
90	vertebrae

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🧠 Section F: Mixed Challenge (91–100)

Q	Answer
91	criteria
92	analyses
93	bacteria
94	nuclei
95	radii
96	phenomena
97	hypotheses
98	vertebrae
99	men
100	geese